About Us

COG is the one place in metropolitan Washington that regularly brings leaders together to develop solutions to the region's major challenges. COG prepares plans enabling the region to receive federal funding, provides members with research and data to inform decision-making, and offers a wide range of programs, including commuter services, cooperative purchasing, technical assistance and grants, and public outreach campaigns.

Transportation

Through the National Capital Region Transportation Planning Board (TPB), area officials, planners, and engineers ensure a well-managed and maintained transportation system. The TPB, which is staffed by COG, conducts the federally mandated transportation planning process for the region and ensures the uninterrupted flow of federal transportation funds that area jurisdictions receive.

Environment

COG's work engages leaders in various environmental fields from water quality experts to climate scientists. Together, they are advancing regional efforts to restore local waterways, improve air quality, reduce greenhouse gas emissions and address climate change, promote recycling, and enhance and preserve green space and agriculture.

Community

Area officials and experts, including planning and housing directors and child welfare and health officials, work together with their counterparts at COG to help shape stronger communities throughout the region.

Homeland Security & Public Safety

COG brings police chiefs, fire chiefs, emergency managers, and other leaders together as part of its work to strengthen regional public safety coordination, homeland security planning, and emergency communication.

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Publications

TPB Version 2.3.70 Travel Model Documentation
Feb 6, 2019
The TPB Version 2.3 Travel Model, Build 70, also known as the Version 2.3.70 Travel Mode became the adopted travel model on October 18, 2017.
Publications

TPB Version 2.3.75 Travel Model Documentation
Feb 6, 2019
The TPB Version 2.3 Travel Model, Build 75, also known as the Version 2.3.75 Travel Mode became the adopted travel model on October 17, 2018.
Publications

Responding to the Partial Federal Government Shutdown
Feb 13, 2019
A summary of regional analyses and coordination by COG and its members and partners as well as snapshots of the services and resources provided by local governments in metropolitan Washington to help meet residents' needs during the shutdown, which lasted from December 22, 2018 to January 25, 2019.
Publications

Performance-Based Planning and Programming: Regional Transit Asset Management Targets
Feb 22, 2019
Publications

Washington-Baltimore Regional Air Passenger Survey Geographic Findings Report
Apr 8, 2019
Publications

Potomac River Water Quality in Metropolitan Washington
May 1, 2019
Publications

The Future of Housing in Greater Washington
Sep 10, 2019
This is a report on the effort by area officials and housing and planning directors to work together at COG to address the region's unmet housing needs.
Publications

Regional Air Quality Update
Dec 18, 2019
Short report of trends and data on ground-level ozone pollution prepared for the Metropolitan Washington Air Quality Committee.
Publications

Washington DC-MD-VA 2015 Ozone NAAQS Nonattainment Area Base Year 2017 Emissions Inventory (Initial Inventory dated January 24, 2020)
Jan 24, 2020
This document contains a detailed explanation of the base year 2017 emissions inventory for point, nonpoint (area), nonroad, and onroad anthropogenic sources as well as biogenic sources in the Washington, DC-MD-VA 2015 ozone National Ambient Air Quality Standards (NAAQS) marginal nonattainment area. (Posted for public hearing & comment purposes for Maryland)
Publications

Connections: Regional News from COG

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